Shimano Saint RD-M820-SS1 Rear Derailleur - 10 Speed Short Cage Black MFPN=803-03-203 Wider Q-factor allows ample clearance

Wider Q-factor allows ample clearance between shoe and crankarm

Heat insulating piston design

They have a slim dual-concave profile that is 14mm thick at the perimeter and just 12

Color Silver Links (links) 138 Drivetrain Speeds 11 Weight 257 Half Link Chain No Chain Connection Type Quick Link Designed for ebike Yes Defined Color Silver

Shimano Saint RD-M820-SS1 Rear Derailleur - 10 Speed Short Cage Black MFPN=803-03-203 Wider Q-factor allows ample clearanceShimano Saint RD M820 SS1 Rear Derailleur 10 Speed Short Cage Black. Shimano Saint RD M820 Rear DerailleursShadow+ chain stabilizer provides a simple lightweight chain control solution Mode Converter allows the derailleur to track different type of cogsets DH mode is a close ratio mode to track up to a 23T 28T low gear AM mode is optimized for a wider ratio cogset with a 32T 34T low gear TECH SPECS Largest Cog 36 Color Black Rear Der Shifter